Considering one of the big selling points is the almost infinite number of combinations available, I find it perplexing that you have 3 options as a starting point, and depending on which one you start with then some additional extras are not available.Surely it would have been better to start with a base model and then choose from all the options.if I start with the Jam then the park assist doesn't show as an option, I need to start with the slam, but then I have to get the chrome pack.In time honoured fashion. Discuss........